diff --git a/src/kbmod/configuration.py b/src/kbmod/configuration.py
index 379656b4..07ca2ae2 100644
--- a/src/kbmod/configuration.py
+++ b/src/kbmod/configuration.py
@@ -1,4 +1,3 @@
-import ast
 import math
 
 from astropy.io import fits